Music-leaf turner



F. HALL.

MUSIC LEAF TURNER. I APPL IQATION FILED DEC 15, 1919. 1 434 890 Patented Nov. 7, 1922 3 SHEETS-SHEET l.

F. HA-LL.

MUSIC LE/IF TURNER. APPLICATION FILED DEC. I6, I9I9.

1,434,890, Paten ted Nov. 7, 1922.

3 $HEETS-SHEET 2.

A TTOB/VEVS F. HALL.

MUSIC LEAF TURNER. APPLICATION FILED DEC.15,1919. 1,434,890, Patented N0". 7, 1922 3 SHEETS-SHEET 3.

WITNESSES FRANK HALL A TTOR/VEYS Patented Nov. 7, 1922 FRANK HALL, OF VICTORIA, BRITISH COLUMBIA, CANADA.

MUSIC-LEAF TURNER.

Applicationv tiled December 16, 1919. Serial No. 345,382.

To all whom it may concern:

Be it known that I FRANK HALL, a subject of the King of En land, and a resident of Victoria, in the rovince of British Columbia, Canada, have invented a new and Improved Music-Leaf Turner, of which the following is a full, clear, and exact description. r

This invention relates to music leaf'turn ers, and has reference more particularly to a music leaf turner which may be operated by the foot of the player of an instrument.

An object of this invention is to provide a means for the turning of the music leaves without interrupting the continuous playing of the instrument by the musician.

Another object of this invention is to pro,-

vide a device of the class described which will be cheap to construct and easy to operate.

Reference is to be had to the accompanying drawing forming a part of this specification, in which it is understood that the drawing is merely illustrative of one example of the invention, and in which Figure 1 is an elevation of a piano on which is installed my improved music leaf turner.

Figure 2 is a fragmentary top view of a. portion of said piano showing my improved device.

Figure 3 is a view on a larger scale similar to Figure 2 with parts broken away to disclose the construction of the operating mechanism.

Figure 4 is a section through Figure 3 on the line 44.

Figure 5 is an elevation of a part of the operating mechanism shown in Figure 3.

Figure 6 is an elevation of one of the music leaf clips.

Figure 7 is an edge view of the clip shown in Figure 6.

Figure 8 is a sectional top view of the operating foot pedal, and

Figure 9 is a sectional side view of the operating foot pedals.

Figure 10 is a fragmentary elevation on a large scale of the locking hooks and pedals.

Referring to the accompanying drawing by numerals, 10 indicates a piano or any other instrument on which it is desirableto apply my improved device The operating mechanism on my improved music leaf turner consists in three pedals 11, 12 and 13, each of which are pivotally mounted substantially midway between their ends on a spindle 14 which is fixed to suitable supports 15 by means of a washer 16, and a pin 17 engaging said washer. The support 15 is fixed to the inside of the instrument case. by means of screws 18, so that one end of said pedals extends inside said case, and engage cables 19 which pass through pulleys 20, supported in any suitable manner such vas plates 21. These pulleys are preferably arranged on the supports 15 in sets of threes, one set on the floor of said instrument case, another set on the inside,

end of said instrument case, anda third set inside the front wall of said instrument case.

The end of'each of the cables 19 opposite the operating foot pedals is fixed to an operating arm 22, which in turn is fixed to a spur gear 23 by means of any suitable fasteners such as rivets 24. Each spur gear 23 is rotatably mounted on a bolt 25, said bolt being mounted in bearing plates 26, and secured to said plates by means of a nut 27. The spur gears 23 are spaced apart from the bearing plates 26 and from each other by means of washers 28, and mesh with similar spur pinions 29, which are rotatably mounted on a bolt 30, said bolt being mounted on the bearing plates 26 and secured thereto by means of a nut 31. The spur gears 29 are preferably of smaller diameter than the spur gears 23, so that a partial rotation of the spur gears 23 will cause a complete rotation of the spur gears 29. The bolt 25 is positioned inside the front wall of an instrument case, and the bolt 30 is positioned outside said wall and adjacent the music as it is usually placed on the music support 32 of said instrument. Each of the spur gears 29 has fixed to it an arm 33, the upper and lower of said arms (see Fig. 5) being ofi'set so as to be in alignment with the middle of said arms. Each of said arms is pivotally connected by means of a pivot 34. to a clip supporting arm 35, and each of said arms 35 has fixed to it a pair of clips 36 by means of screws 37. Each of these pairs of clips engages one side of a sheet of music and is preferably slightly resilient, so as to grip the sheet of music securely. Fixed to each of the spur gears 23, preferably by rivets 38, is an arm 39,

In operation, each of the pairs of clips 36" is fixed to a page of the music book, while the music is being played at the option of the musician and the page can'be turned by lowering the proper foot pedal withthe foot.

When in its lowermost position the foot pedal engagesthe hook 43, and is held in said position against the action of the spring 40. if a musician should desire to play the piece of music a second time, the foot pedals are released "from the hooks 43 and the arms are returned to their original position under the action of thespring l0; Since the arm 35 is pivoted to the arm 83, it may be attached to any size music book, as said arm 35 may be lowered or raised about its pivot 34 until the clips 36 gripthe leaves of said. book. I

I would state in conclusion that while the illustrated example constitutes a practical embodiment of my invention, I do not limit myself strictly to' the mechanical details herein illustrated, since manifestly the same can be considerably varied without de- It is understood thatany wheelsmeshing with the large gear wheels, 7

leaf turning arms formed of jointed members and carried by the small gear wheels, pedals, and av flexible connection between each pedal and an arm of a large gear wheel.

2. A music leaf turner, eo1nprising,a support, a plurality of large gear wheels'each having two arms arranged approximately at right angles to one another, a spring connecting one arm of each gear wheel with the support, small gear wheels meshing with the large gear wheels, leaf turning arms carried by the small gear wheels, pedals, and a flexibleconnection between the other arm of the gear wheels and a pedal.

3. A music leaf turner, comprising a plurality of large gear wheels, each provided with two fixedly secured arms, a small gear wheel. meshing with each of the first named gear wheels, a leaf turning arm secured" to each small gear wheel, said arm being formed of two pivoted sections, pedals, a cable connecting each pedal with one of the arms of the largege'ar wheel, and springs each having one end secured to a fixed support and its other end to thefother armor the large gear wheel.

FRANK Ha Ln 

